Radar charts of key results of kinematical (dark teal blue, outer polygon) and dynamical (pale green, inner polygon) refinements. Smaller values closer to the centre are better. [Δ V ( r )] is the standard uncertainty of the difference Fourier map (purple; range: 0–0.372 e A –1 ), MR obs (light blue; range: 0–0.294) and MwR all (dark blue; 0–0.333) are the respective R-factors, RMSD is the root-mean-square deviation of the bond lengths (green; 0–0.603 A), wR/wR(H 0 ) is the ratio of wR all of the refinement with and without hydrogen atoms (red; 0–0.997), ‘undet. H sites’ refers to the fraction of hydrogen atoms that could not be confirmed from difference Fourier maps (orange; 0–0.891). The latter two parameters are not applicable to quartz, albite, mordenite and STW_HPM-1.